Buffer type deformation prevention coal mine air door device

CN224550161UActive Publication Date: 2026-07-24NINGXIA BAOFENG GROUP HONGSI COAL CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGXIA BAOFENG GROUP HONGSI COAL CO LTD
Filing Date
2025-09-23
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Traditional coal mine ventilation doors are prone to irreversible deformation due to the deformation of the surrounding rock in roadways under high mine pressure or with frequent geological activity, leading to difficulty in opening and closing or complete locking, posing serious safety hazards and affecting ventilation and mining efficiency.

Method used

A buffer-type anti-deformation coal mine ventilation door device is designed, which adopts a pressure-bearing frame, a door body, an elastic buffer component, and a deformation monitoring mechanism. By setting a buffer gap and an elastic buffer component between the door body and the pressure-bearing frame, combined with a hinge component and a deformation monitoring sensor, active defense and early warning can be achieved.

Benefits of technology

It significantly reduces the risk of irreversible deformation and locking of air doors, ensures that air doors can still be opened and closed after roadway deformation, detects abnormal deformation trends in advance, reduces unplanned downtime, and improves the safety and production efficiency of coal mines.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224550161U_ABST
    Figure CN224550161U_ABST
Patent Text Reader

Abstract

The application discloses a buffer type anti-deformation coal mine air door device, relates to the technical field of mine roadway air door structure design, and comprises a pressure bearing frame, a door leaf main body, a hinge assembly, an elastic buffer assembly, an alarm device and a deformation monitoring mechanism; the pressure bearing frame is installed on a roadway wall surface, the door leaf main body is installed in the internal space of the pressure bearing frame, a buffer gap is left between the periphery of the door leaf main body and the pressure bearing frame, the elastic buffer assembly is uniformly distributed in the buffer gap, one end of the elastic buffer assembly is fixedly connected with the pressure bearing frame, and the end, away from the pressure bearing frame, of the elastic buffer assembly is in abutment with the door leaf main body; the deformation monitoring mechanism comprises at least two deformation monitoring sensors, and the two deformation monitoring sensors are respectively a first deformation monitoring sensor and a second deformation monitoring sensor. Through the arrangement, the device is changed from passive damage bearing to active defense and early warning, and the reliability and safety of the coal mine air door under adverse geological conditions are remarkably improved.
Need to check novelty before this filing date? Find Prior Art